Concrete Floor Moisture Testing

Acceptable moisture levels in concrete according to astm standard when testing via astm f2170 the rh level of a concrete slab needs to be at or below 75 unless the flooring system manufacturer provides alternate guidelines.

Concrete floor moisture testing.

However before you can install certain materials over the top of a concrete floor you must check to see if there is an excess of moisture present that can affect their installation causing them. The test is conducted in three locations for every 1000 square feet of concrete slab. For each test site a packet of very dry calcium hydroxide is poured into a container which is then weighed. After meeting with the contractor ryan gets to work and provides test results within 24 hours.

Ifti joins fuse alliance. These tests should be performed on all concrete slabs regardless of their age or grade level. Concrete moisture and surface alkalinity testing are essential in the determination of the suitability of a concrete slab to receive a moisture sensitive floor covering sheet vinyl vct tile carpet hardwood laminate or coating. Wood flooring is ready to be installed but first ryan must test to make sure that there has been no moisture penetration into the concrete slab.

Prepare properly and you will minimize the risk of a moisture related flooring disaster. A definitive test that measures the amount of moisture released from the concrete requires a calcium chloride kit or a relative humidity meter. Three methods for testing concrete moisture levels. 06 07 2018 in facing the challenges that concrete slab moisture poses to flooring contractors the fuse alliance a member owned organization of professional commercial flooring contractors announced today that independent floor testing inspection ifti has joined the network as a preferred supplier.

This allows you to determine the moisture level across the entire surface of the floor rather than just one specific area. Three tests must be performed for the first 1 000 sq. Moisture testing conducted before the installation of the finished floor over a concrete slab is no different than football in this sense. So here are several vital tips to help you better prepare for your next flooring job.

Testing concrete slabs for excess moisture has become a common construction requirement particularly where flooring or impermeable membranes are to be installed on top of the slab. Testing with either method will tell you how precisely how much moisture is present making it possible to choose a surface flooring that is appropriate. Moisture in concrete should be measured by an anhydrous calcium chloride test kit per the astm f 1869 test method or by using an in situ probe test for relative humidity rh per the astm f 2170. Know the job parameters.

And one for every 1 000 sq. How moisture gets into concrete.